Move context check into factory

Author: zwu52

packages-exp/messaging-exp/src/index.sw.ts

@@ -18,7 +18,7 @@
 import '@firebase/installations-exp';
 
 import { FirebaseMessaging } from './interfaces/public-types';
-import { registerSwMessaging } from './helpers/register';
+import { registerMessagingInSw } from './helpers/register';
 
 export { onBackgroundMessage, getMessaging } from './api';
 export { isSwSupported as isSupported } from './api/isSupported';
@@ -29,4 +29,4 @@ declare module '@firebase/component' {
   }
 }
 
-registerSwMessaging();
+registerMessagingInSw();

packages-exp/messaging-exp/src/index.ts

@@ -18,7 +18,7 @@
 import '@firebase/installations-exp';
 
 import { FirebaseMessaging } from './interfaces/public-types';
-import { registerWindowMessaging } from './helpers/register';
+import { registerMessagingInWindow } from './helpers/register';
 
 export {
   getToken,
@@ -36,4 +36,4 @@ declare module '@firebase/component' {
   }
 }
 
-registerWindowMessaging();
+registerMessagingInWindow();